Piston ring



June 16, 1925. 1,541,944

H. A. GUERLAY PISTON RING Filed April 11. 1924 WITNESSES 11v VENTOR 77?v'lvwm/ wamptonfl. Guerlay A TTORNEYS Patented June 16, 1925i.

HAMPTON ARTHUR GUERLAY, OF HOUSTON, TEXAS,

rxs'ron ante.

To all whom it may concern.-

Be it known that I, HAMPTON A. GUER- LAY, a citizen of the UnitedStates, residing at Houston, in the county of Harris, State of Texas,have invented certain new and useful Improvements in Piston Rings, ofwhich the following is a specification.

My invention relates to improvements in piston rings, and it consists inthe constructions, combinations and arrangements herein described andclaimed.- I

An object of the invention is to provide a ring for internal combustionengine pistons having particular provisions for press ing the ringdownwardly in the groove and outwardly against the cylinder wall for thepurpose of preventing leakage of compression.

Other objects and advantages appear in the following specification,reference being had to the. accompanying drawing, in which t Figure 1 isa Figure 2 is a etail perspective view of one end of the ring,

Figure 3 is a perspective view of the opposite and abutting end of thering,

Figure 4 is a section of portions of a piston and cylinder illustratingthe ring in place in a groove, and i Figure 5 is an end elevation of thering.

In carrying out the invention, the ring 1 is provided with a pluralityof upstandlng lugs 2 which are equally spaced apart with the exceptionof the lugs 3 and 4 atthe abutting ends of the ring 1. These are alittle closer together in order to more effectively support the joint.This joint isoomposed of a thin flange 5 (-Fig. 3) which has an innershoulder 6 defining a recess 7 in the under front edge of the right endof the ring toreceive and house the opposite abutting end 8. The ring 1is made of any suitable material, usually steel.

The recess receives the abutting end 8, and when fitted in position asshown in Figures 1 and 5, the outer surface ofthe ring ,is continuous.Extending inwardly of the ring 1 is a plurality of lugs 9. These areshown as of substantial contmuations of the upstandperspective view ofthe improved piston ring,

may

Application filed April 11, 1924. Serial No. 705,913..

ing lugs 2, although the particular configurat on illustrated 1s notnecessarily adhered to for the effective carrying out of the invention.

Situated inside of the ring, like the other I lugs 9, is a lug 15 (Fig.2) in continuation of the lug 3, mentioned before. This particularinternal lu providesan abutment for the end of thee oulder 6 when thejoint is made upon fitting the ends of the ring together. The upperlug'3 acts in the identical capacity in respect to the flange 5. The endof the flange abuts the lug 3 as clearly shown in Figure5.

Reference is now made to Figure 4. The piston 10 may be that of anyinternal combustion engine cylinder 11. The piston has one or moregrooves 12 as is customary. The ring 1 1s fitted inplace as illustrated,the

body portion of the ring bearinglagainst the interior of the cylinder11. e inwardly estending lugs 9 aid in the support of the ring. T epurpose of these lugs is to provide horizontal spaces 13 through whichthe compression in the cylinder may act to force the ring outwardlyagainst-the wall of'the cylinder.

Similarly, the upstanding lugs 2 provides spaces 14: through which thecompression act downwardly upon the-ring to ,force it against the bottomof the groove 12. The

result of the combined actions on the ring is to keep. it firmly seatedagainst the wall of the cylinder and against the bottom of the groove sothat no losses of compression from above the piston 10 may occur.

While the construction and arrangement of the improved piston ring asherein described and claimed is that of a generally preferred form,obviously, modifications and changes may be made. without departing fromthe spirit of the invention or the scope of the claims.

I claim:

1. A piston rin spaced lugs upstan a plurality of spaced lugs extendinwardly of the ring, the various lugs de ning spaces for the admission ofpressure fluid to respectively force the ring down and out in a pistongroove, and means by which a jomt having a plurality of ing on its uppersurface,

is made between'the separated ends of the ring including means providinga recess to receive an end of the ring, and upstanding lugs spacedcloser than the other to reinforce the joint. v

2. A piston ring having a. plurality of substantially s uare lugsupstanding from the upper sur 'ace, corresponding lugs in substantialcontinuation of the upstanding 1 lugs extending interiorly of the ring,jointforming means consisting of an upper flange and an internalshoulder at one end of the ring defining a recess to receive theopposite and abutting end of the ring, a pair of upstanding lugs closeto the joint defined by said means, one of said lugs being abutted bythe end of the flange, and a single lug inside of the ring adjacent tothe joint abutted by the end of said shoulder.

HAMPTON ARTHUR GUERLAY.

